TWI443416B - Receiving container, method of manufacturing the same and liquid crystal display apparatus having the same - Google Patents

Description

Storage container, manufacturing method thereof and liquid crystal display device therewith Background of the invention 1. Scope of invention

The present invention relates to a storage container, a method of manufacturing the same, and a liquid crystal display device therewith, and more particularly to an enhanced storage container, a method of manufacturing the same, and a liquid crystal display device having the same.

2. Description of related skills

A liquid crystal display (LCD) device has been developed which is thinner and lighter than a cathode ray tube (CRT) type display device. This LCD device provides full color and high resolution. Therefore, the LCD device is widely used as a display screen for a handheld device, a screen of a computer, a television set and other forms of display devices.

A typical liquid crystal display (LCD) device includes an LCD panel, a driving portion for driving the LCD panel, a backlight assembly for providing light to the LCD panel, and a storage container for housing the LCD panel and the backlight assembly.

Recently, LCD devices have become thinner to increase portability and save space. For this reason, a storage container having a low side wall is used in a thinner LCD device.

However, a storage container having a low side wall will result in a decrease in structural strength such that bending is caused by an external force. Therefore, the backlight assembly and the LCD panel housed in the storage container may be damaged.

Summary of invention

Accordingly, the invention is to be construed as being limited to the one or the

It is a feature of the present invention to provide an enhanced storage container, a method of manufacturing the same, and a liquid crystal display device having the same.

In one aspect of the invention, a storage container for a display device is provided. The storage container houses a frame. The storage container includes a bottom plate and a side wall, the side wall has a first side wall portion extending from the bottom plate in a first direction substantially perpendicular to the bottom plate, and a first side wall portion extending from the first side wall portion to the first direction a second side wall portion in two directions, and an extended portion extending from the second side wall portion in a direction identical to the bottom plate. This extended portion faces the bottom plate. Further, the extended portion is bent by 180 degrees to extend in the first direction, and is disposed between the first side wall portion and the second side wall portion. The plurality of curved portions of the side walls are dispersed from the external force by the first side wall portion, the second side wall portion, the extended portion and the bottom plate which are in contact with and supported by each other, so that the side wall of the present invention provides a reinforcing force to the display device.

In another aspect of the invention, a liquid crystal display is provided. The liquid crystal display device has a liquid crystal display panel, a light generating portion, a light guiding portion, a mold frame and a storage container. The storage container includes a bottom plate and a side wall. The side wall of the receiving container has a first side wall portion extending from the bottom plate in a first direction substantially perpendicular to the bottom plate, and a second side wall portion extending from the first side wall portion in a direction relative to the first direction The two directions, and an extended portion, extends from the second side wall portion in the same direction as the bottom plate. The side wall includes a plurality of side walls and an opening, the opening being formed between each of the side walls Corner, and the mold fills this opening. Further, a coupling hole is formed in the housing container, and a projection formed on the mold frame is fixed to the coupling hole. According to the invention, the container has a reinforced structure and the frame can be more strongly coupled to the container.

The structures and features of the present invention are readily apparent to those skilled in the art from the Detailed Description and the accompanying drawings.

Simple illustration

The above and other aspects, features, and advantages of the present invention will be apparent from 2 is a cross-sectional view showing a state of the LCD device shown in FIG. 1 in an assembled state; and FIGS. 3 to 5 are cross-sectional views showing a method of manufacturing a base as shown in FIG. 2; Figure 6 is a perspective view showing a base according to an exemplary embodiment of the present invention; and Figure 7 is a view showing an assembled structure of a base and a frame according to an exemplary embodiment of the present invention; Cross-sectional view; Figures 8 through 11 are cross-sectional views showing a method of manufacturing the base as shown in Fig. 7; and Fig. 12 is a view showing one of the exemplary embodiments according to the present invention in a base and a frame A cross-sectional view of an intermediate structure; FIG. 13 is a view showing one of typical embodiments of the present invention An exploded perspective view of the light assembly; Fig. 14 is a cross-sectional view showing the structure of the assembly between the base and the mold frame as shown in Fig. 13.

Detailed description of the preferred embodiment

The invention will be fully described below with reference to the accompanying drawings, which also illustrate embodiments of the invention. The invention may be embodied in a number of different forms, but the invention is not intended to be limited to the embodiments. Rather, these embodiments are provided merely to provide a more complete and comprehensive disclosure of the disclosure. In the drawings, the dimensions and relative dimensions of the various layers and regions are exaggerated for clarity.

It must be understood that when an element is referred to as "on" another element, it may be directly on the element or the other element is interposed. Conversely, when an element is referred to as being "directly on" another element, there are no intervening elements. Like reference numerals refer to like elements. As used herein, "and/or" includes any and all combinations of one or more of the listed items.

It should be understood that, although the first, second, third, etc. are used herein to describe various elements, components, regions, layers and/or segments, these elements, components, regions, layers and/or segments should not be Words are limited. These words are only used to distinguish one element, component, region, layer or layer with another element, component, region, layer or segment, so the "first" element, component, region, layer or segment described below is also Reference may be made to "second" elements, components, regions, layers or segments without departing from the teachings of the invention.

The words used herein are for the purpose of describing particular embodiments, and are not intended to limit the invention. Unless otherwise specified, the singular terms "a" and "the" are used in the plural. It is to be understood that the words "including" and / or "including", when used in the specification, are specifically referring to the presence of the features, the whole, the steps, the operation, the components, the components and/or the group, but The existence or addition of one or more other features, integers, steps, operations, components, components and/or groups are not excluded.

In addition, spatially related terms such as "below", "above" and similar words are used herein to describe one element or feature relative to another element or feature. Relevance. It must be understood that the relevant terms of the space are intended to emphasize the different orientations in which the device is being used or operated, not just the orientation indicated in the schema. For example, if the device in the drawings is reversed, the element "under" another element or feature will be "above" the other element or feature, so the suffix "... The following can be referred to as "above" and "below". When the device is oriented in another orientation (rotated 90 degrees or toward other orientations), the spatially related description terms used herein will be interpreted differently.

Unless otherwise stated, all terms (including technical and scientific terms) used herein have the same meaning meaning meaning It will be further understood that the terms defined in the general use of the dictionary should be interpreted as having the same meaning as in the context of the related art and the present specification, and should not be idealized or unless explicitly defined herein. Excessive formal interpretation.

Embodiments of the invention are described with reference to the schematic cross-section of a preferred embodiment of the invention. Thus, there may be variations in the shape of the drawings due to, for example, manufacturing methods and/or tolerances. As such, the embodiments of the invention should not be construed as being limited to the particular shapes of the embodiments illustrated herein. For example, a region shown or described as being flat typically has coarse and/or non-linear features. In addition, the sharp angles shown can be rounded. Thus, the regions illustrated in the figures are shown in schematic and are not intended to

The invention is described more fully hereinafter with reference to the accompanying drawings in which: FIG.

1 is an exploded perspective view showing an LCD device according to an embodiment of the present invention, and FIG. 2 is a cross-sectional view showing the LCD device shown in FIG. 1 in an assembled state.

Referring to FIGS. 1 and 2, an LCD device 100 includes an LCD panel 110 for displaying an image to reflect an image signal, and a backlight assembly 300 for providing a light to the LCD panel 110.

The LCD panel 110 includes a color filter substrate 111, a thin film transistor (TFT) substrate 112, and a liquid crystal layer (not shown) disposed between the color filter substrate 111 and the TFT substrate 112. A flexible printed circuit board 113 connected to the TFT substrate 112 and a driving portion (not shown) transmit image signals and driving voltages from the driving portion to the TFT substrate 112.

The backlight assembly 300 includes a light guiding portion 120, a mold frame 130, a reflective sheet 140, a light generating portion 150 and a base 160.

The light generating portion 150 includes a printed circuit board 152 and at least one light emitting diode (LED) 151 is disposed on the printed circuit board 152. Both a flexible printed circuit board and a flat type printed circuit board are suitable as the printed circuit board 152. Further, a light assembly is used as the light generating portion 150.

The light guiding portion 120 includes a light guiding plate 122 and at least one optical sheet 121. The light guiding plate 122 has a light incident surface 154 and a light emitting surface 155, and the light generating portion 150 is disposed to face the light incident surface 154. The light guiding plate 122 changes and emits light incident from the light generating portion 150 to a direction in which the LCD panel 110 is disposed. The optical sheet 121 disposed between the light guiding plate 122 and the LCD panel 110 increases the brightness and uniformity of light emitted from the light emitting surface 155 of the light guiding plate 122. A plurality of diffusing sheets and a plurality of sheet sheets are applicable, and the number and type of the optical sheets are in accordance with each particular feature of each display device.

The reflective sheet 140 disposed under the light guiding plate 122 reflects the light leaking from the light guiding plate 122.

The mold frame 130 made of a resin such as a plastic resin has a rectangular-shaped frame having an opening at the center. A plurality of grooves 131 and a terrace 132 are formed on the inner surface of the mold frame 130 for accommodating and supporting the light generating portion 150 and the light guiding portion 120. The LCD panel 110 is supported by the mold frame 130. It is also possible to use other frames disposed on the mold frame 130 to support the LCD panel 110.

The outer surface of the mold frame 130 includes a groove (or current interrupter) 133 that is formed to correspond to the outer shape of the base 160. The recess 133 is formed by a process of inserting a module onto the base 160 by injecting a resin. The base 160 and the mold frame 130 are inserted through The module processes are in closer contact with one another such that the mold frame 130 is strongly coupled to the base 160.

The base 160 is formed of a metallic material such as stainless steel and includes a bottom plate 161 and a plurality of side walls extending therefrom.

Referring to Fig. 2, the two side walls 162 face each other (only one is shown), extend substantially perpendicular to the bottom plate 161 of the base 160, and have a plurality of bends. Each of the side walls 162 includes a first side wall portion 163 extending from the bottom plate 161 and bent upward from the bottom plate 161, a second side wall portion 164 extending from the first side wall portion 163 and bent downward, and an extended portion 165 It extends from the second side wall portion 164 and overlaps the bottom plate 161. With this configuration, the side walls 162 having a plurality of curved portions release the first side wall portion 163 which is in contact with and supported by the external force, the second side wall portion 164, the extended portion 165 and the bottom plate 161, so that the side wall 162 strengthens the display. Device.

The side wall 162 is made by bending a base several times.

3 to 5 are cross-sectional views showing a method of manufacturing a base as shown in Fig. 2.

Referring to FIGS. 2 and 3, a base 180 is bent 180 degrees from an edge of the base 180 along a first bending line L1 by bringing the height d1 of the side wall 162 and the length d2 of the extended portion 165 together. And a curved portion 182 is formed. The curved portion 182 defines an end edge of the base 180.

Referring to FIGS. 2 and 4, the base 180 is bent 90 degrees from the curved portion 182 by a second bending line L2 to maintain a height d1 substantially the same as the side wall 162.

Referring to FIG. 5, the first side wall portion 163 is included, and the second side wall portion 164 and the side wall 162 of the extended portion 165 are completed by a bending process, which includes The first bend of the first bending line L1 and the second bend of the second bending line L2 are extended as described above.

The mold frame 130 is formed by inserting the module onto the base 160 having the side wall 162. The side wall 162 is formed by the first bending and the second bending. The insertion module includes a mounting base 160 in the injection module, and The process of inserting a resin onto the base 160.

Figure 6 is a perspective view showing a base in accordance with an exemplary embodiment of the present invention.

Referring to Figures 1 and 6, a base 160 includes four side walls 162 having a plurality of curved portions to facilitate an increase in the reinforcing force against the external force on the base 160. The extended portions 165 of the side walls 162 do not overlap each other in order to avoid increasing the thickness of the base 160 caused by the overlapping portions between the extended portions 165.

The mold frame 130 fills a space between the side walls 162, such as a corner of the base 160. Therefore, the contact area between the mold frame 130 and the base 160 is increased such that the mold frame 130 is more strongly coupled to the base 160.

Figure 7 is a cross-sectional view showing the structure of an assembly between a base and a frame in accordance with an exemplary embodiment of the present invention.

Referring to Fig. 7, an extended portion 265 extends from a second side wall portion 264 and is bent upward by 180 degrees. The extended portion 265 is disposed between the first side wall portion 263 and the second side wall portion 264 such that the reinforcing force of the side wall is increased. Although the side wall 262 shown in FIG. 7 is bent 180 degrees to the inside of the base 260, it is possible to bend the side wall 262 by 180 degrees to the outside of the base 260.

Figures 8 through 11 are cross-sectional views showing a method of manufacturing the base as shown in Fig. 7. Sectional view.

Referring to FIGS. 7 and 8, a base 190 is bent 180 degrees from an edge of the base 190 along a first bending line L1 to maintain a distance d1 substantially the same as the height of the side wall 262 to form a first bend. Department 192.

Referring to Figures 7 and 9, the base 190 is bent 180 degrees along a second bending line L2 to maintain a distance d1 from the first curved portion to form a second curved portion 194.

Referring to FIGS. 7 and 10, the base 190 is bent 90 degrees along a third bending line L3 to maintain the distance d1 from the second curved portion 194.

Referring to FIG. 11, a first side wall portion 263, a second side wall portion 264, and a side wall 262 of the extended portion 265 disposed between the first side wall portion 263 and the second side wall portion 264 are provided as described above. The third bending of the three bending line L3 is completed.

Figure 12 is a cross-sectional view showing the structure of an assembly between a base and a frame in accordance with an exemplary embodiment of the present invention.

Referring to FIG. 12, a side wall 362 of a base 360 includes a first side wall portion 363 extending from a bottom plate 361 and bent upward, and a second side wall portion 364 extending from the first side wall portion 363 and bent downward, and An extended portion 365 extends from the second side wall portion 364 and overlaps the bottom plate 361. The second side wall portion 364 is bent outside the base 360 such that the inner surface of the second side wall portion 364 is in contact with the outer surface of the first side wall portion 363. The extended portion 365 is disposed below the bottom plate 361. Thus, the inside of the base 360 has a rounded surface without any grooves or projections, and it is possible to accommodate a finished mold frame 130 for the base 360 without the need to insert a module, as shown.

Figure 13 is an exploded perspective view showing a backlight assembly in accordance with an exemplary embodiment of the present invention. Figure 14 is a cross-sectional view showing the structure of the assembly between the base and the mold frame as shown in Figure 13.

Referring to Fig. 13, a backlight assembly 400 includes a light guiding portion 120, a reflective sheet 140 disposed under the light guiding portion 120, and a light generating portion 150 disposed on one side of the light guiding portion 120. , a frame 430 and a base 460. The structure and function of the light guiding unit 120, the reflective sheet 140, and the light generating unit 150 are substantially the same as those of the corresponding unit having the same reference numeral shown in FIG.

The mold frame 430 supports the light guiding portion 120 and the reflective sheet 140 and is housed in the base 460. The mold frame 430 includes a male member 434 that is formed to couple to the base 460.

The base 460 includes a bottom plate 461, a side wall 462 having a plurality of curved portions, and a hole 466. The side wall 462 includes a first side wall portion 463 extending from the bottom plate 461 and bent upward, a second side wall portion 464 extending from the first side wall portion 463 and bent downward, and an extended portion 465 from the second The side wall portion 464 extends and overlaps the bottom plate 461. The extended portion 465 should not overlap the reflective sheet 140 in order to provide a higher benefit of the light reflected from the reflective sheet 140. The extended portion 465 is surrounded by the mold frame 430 to prevent the extended portion 465 from being exposed through the opening of the mold frame 430.

Referring to Figure 14, the projection 434 formed on the outer surface of the mold frame 430 is coupled to a hole 466 formed in the first side wall portion 464 of the base 460 such that the mold frame 460 is more strongly coupled to the base. 460. The holes 466 are formed on the other side walls, the bottom plate 461 and/or the extended portion 465.

Although a few exemplary embodiments of the invention have been described, it is understood that the invention is not to be construed as Separated from the skill and advantages of the present invention.

100‧‧‧Liquid crystal display device

110‧‧‧LCD panel

111‧‧‧Color filter substrate

112‧‧‧Thin film transistor substrate

113‧‧‧Flexible printed circuit boards

120‧‧‧Light Guide

121‧‧‧Optical sheets

122‧‧‧Light guide plate

130‧‧‧Template

131‧‧‧ Groove

132‧‧‧High Platform

133‧‧‧ Groove

140‧‧‧Reflective sheet

150‧‧‧Light Generation Department

151‧‧‧Light emitting diode

152‧‧‧Printed circuit board

154‧‧‧Light incident surface

155‧‧‧Light emitting surface

160‧‧‧Base

161‧‧‧floor

162‧‧‧ side wall

163‧‧‧First side wall

164‧‧‧Second side wall

165‧‧‧Extended

180‧‧‧Base

182‧‧‧Bend

190‧‧‧Base

192‧‧‧First bend

194‧‧‧second bend

260‧‧‧Base

261‧‧‧floor

262‧‧‧ side wall

263‧‧‧First side wall

264‧‧‧Second side wall

265‧‧‧Extended

300‧‧‧Backlight assembly

360‧‧‧Base

361‧‧‧floor

362‧‧‧ side wall

363‧‧‧First side wall

364‧‧‧Second side wall

365‧‧‧Extended

400‧‧‧Backlight assembly

430‧‧‧Template

434‧‧‧ convex parts

460‧‧‧Base

461‧‧‧floor

462‧‧‧ side wall

463‧‧‧First side wall

464‧‧‧Second side wall

465‧‧‧Extended

466‧‧‧ hole

1 is an exploded perspective view showing an LCD device according to an embodiment of the present invention; and FIG. 2 is a cross-sectional view showing the LCD device shown in FIG. 1 in an assembled state; 1 is a cross-sectional view showing a method of manufacturing a base as shown in FIG. 2; FIG. 6 is a perspective view showing a base according to an exemplary embodiment of the present invention; and FIG. 7 is a view showing one according to the present invention. A cross-sectional view of one of the exemplary embodiments of the assembled structure between a base and a frame; and FIGS. 8-11 are cross-sectional views showing a method of manufacturing the base as shown in FIG. 7; BRIEF DESCRIPTION OF THE DRAWINGS FIG. 13 is a cross-sectional view showing the structure of an assembly according to an exemplary embodiment of the present invention between a base and a mold frame; FIG. 13 is a view showing a backlight assembly according to an exemplary embodiment of the present invention. An exploded perspective view; Fig. 14 is a cross-sectional view showing the structure of the assembly between the base and the mold frame as shown in Fig. 13.

100‧‧‧Liquid crystal display device

110‧‧‧LCD panel

111‧‧‧Color filter substrate

112‧‧‧Thin film transistor substrate

113‧‧‧Flexible printed circuit boards

120‧‧‧Light Guide

121‧‧‧Optical sheets

122‧‧‧Light guide plate

130‧‧‧Template

131‧‧‧ Groove

132‧‧‧High Platform

133‧‧‧ Groove

140‧‧‧Reflective sheet

150‧‧‧Light Generation Department

151‧‧‧Light emitting diode

152‧‧‧Printed circuit board

160‧‧‧Base

161‧‧‧floor

162‧‧‧ side wall

163‧‧‧First side wall

164‧‧‧Second side wall

165‧‧‧Extended

Claims (20)

a storage container for accommodating a mold frame, the storage container comprising: a bottom plate; a first side wall portion extending from the bottom plate in a first direction, the first direction being substantially perpendicular to the bottom plate; and a second side wall portion And extending from the first side wall portion in a second direction, the second direction being opposite to the first direction; and an extended portion extending from the second side wall portion in the same direction as the bottom plate, wherein At least one of the second side wall portion and the extended portion is in contact with the first side wall portion on a surface. The storage container according to claim 1, wherein the second side wall portion is bent inward by 180 degrees and faces an inner surface of the first side wall portion. The storage container according to claim 2, wherein the extended portion faces an upper surface of the bottom plate. The storage container of claim 1, wherein the second side wall portion is bent outward by 180 degrees and faces an outer surface of the first side wall portion. The storage container of claim 4, wherein the extended portion faces a lower surface of the bottom plate. The storage container of claim 1, wherein the extended portion is bent upward by 180 degrees to extend toward the first direction, and the extended portion is disposed at the first side wall portion and the second side wall Between the ministries. The storage container according to claim 1, further comprising: a coupling hole formed in one of the first side wall portion, the second side wall portion and the extended portion; and formed in the mold A convex member on the frame that can fit into the coupling hole. The storage container according to claim 1, further comprising: a coupling hole formed on the bottom plate; and a protruding member formed on the mold frame, wherein the coupling hole is adapted to fit into the coupling hole. The storage container according to claim 1, wherein a first side wall includes the first side wall portion, the second side wall portion and the extended portion, and the receiving container further comprises a second side wall, wherein An opening is formed at a corner between the first side wall and the second side wall, and the mold frame fills the opening. A method for forming a storage container having a bottom plate for receiving a mold frame, the method comprising: forming a first side wall portion extending from the bottom plate in a first direction, the first direction being substantially vertical Forming a second side wall portion extending from the first side wall portion in a second direction, the second direction being opposite to the first direction; and forming an extended portion, the extended portion being extended The portion extends from the second side wall portion in the same direction as the bottom plate, wherein at least one of the second side wall portion and the extended portion The first side wall portion is in contact with the surface. A liquid crystal display device comprising: a liquid crystal display panel; a light generating portion having at least one light source; a light guiding portion comprising a light guiding plate and a light sheet, the light guiding plate guiding a light emitted from the light generating portion, the light sheet being disposed between the light guiding plate and the liquid crystal display panel; a mold frame accommodating the light generating portion and the light guiding portion; and a storage container The storage container includes: a bottom plate; and a side wall extending from the bottom plate, the side wall comprising: a first side wall portion extending from the bottom plate in a first direction, the first direction being substantially a second side wall portion extending from the first side wall portion in a second direction, the second direction being opposite to the first direction; and an extended portion in the same direction as the bottom plate Extending from the second side wall portion, wherein at least one of the second side wall portion and the extended portion is in contact with the first side wall portion on a surface. The liquid crystal display device of claim 11, wherein the second side wall portion is bent inward by 180 degrees and faces an inner surface of the first side wall portion. The liquid crystal display device of claim 11, wherein the The second side wall portion is bent outward by 180 degrees and faces an outer surface of the first side wall portion. The liquid crystal display device of claim 11, wherein the side wall comprises a plurality of side walls, and an opening is formed at each corner between the side walls, and the mold frame fills the opening. The liquid crystal display device of claim 11, further comprising: a coupling hole formed on at least one of the side walls; and a convex member formed on the mold frame, the convex member being It is fixed in the coupling hole. The liquid crystal display device of claim 11, further comprising: a coupling hole formed on the extended portion; and a convex member formed on the mold frame, the convex member being fixed at the coupling Inside the hole. The liquid crystal display device of claim 11, further comprising: a coupling hole formed on the bottom plate; and a protruding member formed on the mold frame, the protruding member being fixed in the coupling hole . The liquid crystal display device of claim 11, wherein the inner surface of the mold frame is formed with a plurality of grooves and a platform for receiving the light generating portion and the light guiding portion. The liquid crystal display device of claim 11, wherein the The extended portion is surrounded by the template. The liquid crystal display device of claim 11, further comprising: a reflective sheet disposed between the light guiding plate and the receiving container.